福利!!在附件中贈送相關jar！！
1.導入相關jar：
調用郵件操作相關的jar如下(可在code.google.com上下載)：
activation.jar
additionnal.jar
mail.jar
在需要導入的Android工程中屬性頁設置：
選擇Add External Jar,並將三個jar包導入；
現在即可在代碼調用相關API：
2.在項目中新建一個郵件發送的MailSender類：
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.Authenticator;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.Message;
public class MailSender extends Authenticator {
private Properties properties;
private Session session;
private MimeMultipart multipart;
private Message message;
public MailSender() {
super();
this.properties = new Properties();
}
public void setProperties(String host, String post) {
this.properties.put("mail.smtp.host", host);
this.properties.put("mail.smtp.post", post);
this.properties.put("mail.smtp.auth", true);
this.session = Session.getInstance(properties);
this.message = new MimeMessage(session);
this.multipart = new MimeMultipart("mixed");
}
public void setReceiver(String[] receiver) throws MessagingException {
Address[] address = new InternetAddress[receiver.length];
for (int i = 0; i < receiver.length; i++) {
address[i] = new InternetAddress(receiver[i]);
}
this.message.setRecipients(Message.RecipientType.TO, address);
}
public void setMessage(String from, String title, String content)
throws AddressException, MessagingException {
this.message.setFrom(new InternetAddress(from));
this.message.setSubject(title);
MimeBodyPart textBody = new MimeBodyPart();
textBody.setContent(content, "text/html;charset=gbk");
this.multipart.addBodyPart(textBody);
}
public void addAttachment(String filePath) throws MessagingException {
FileDataSource fileDataSource = new FileDataSource(new File(filePath));
DataHandler dataHandler = new DataHandler(fileDataSource);
MimeBodyPart mimeBodyPart = new MimeBodyPart();
mimeBodyPart.setDataHandler(dataHandler);
mimeBodyPart.setFileName(fileDataSource.getName());
this.multipart.addBodyPart(mimeBodyPart);
}
public void sendEmail(String host, String account, String pwd)
throws MessagingException {
this.message.setSentDate(new Date());
this.message.setContent(this.multipart);
this.message.saveChanges();
Transport transport = session.getTransport("smtp");
transport.connect(host, account, pwd);
transport.sendMessage(message, message.getAllRecipients());
transport.close();
}
}注意區別兩個同名的類：javax.mail.Message和android.os.Message；
3.在主類中新建子線程調用MailSender類：
3.1 Activity主類中變量聲明、參數設置：
private MailSender mailsender; private String str_SMTP = "smtp.126.com"; private String str_SMTP_PORT = "587"; private String str_USER_NAME = "[email protected]"; private String str_PASSWORD = "******"; private String str_MAILTITLE = "System.Log"; private String str_TARGETMAIL = "[email protected]"; private String str_SMTP = "smtp.126.com"; private String str_SMTP_PORT = "587"; mailsender = new MailSender(); mailsender.setProperties(str_SMTP, str_SMTP_PORT);
本例使用一個126的郵箱發到一個yahoo郵箱中；
3.2 寫了個方法：
public void SendingTargetMail(String str_content) throws AddressException,MessagingException {
mailsender.setMessage(str_USER_NAME, str_MAILTITLE, str_content);
mailsender.setReceiver(new String[] { str_TARGETMAIL });
mailsender.sendEmail(str_SMTP, str_USER_NAME, str_PASSWORD);3.3 寫個子線程調用（郵件正文遵循html語法）：
Runnable Sward_runnable = new Runnable() {
public void run() {
SendingTargetMail("<html><body>" + "System time :"+ getCurrentTime() + "<br>"
+ "</body><html>");
}
};3.4 主線程啓動子線程，後者一啓動就發了個郵件：
Sward_Thread = new Thread(Sward_runnable); Sward_Thread.start();
3.5 Manifest文件中別忘了加上權限聲明：
<uses-permission android:name="android.permission.INTERNET" />